3998. [bug] isc_radix_search was returning matches that were

                        to precise. [RT #37680]

(cherry picked from commit b976c39c07f7672bd1293e878b3306c7decf8afe)

diff --git a/CHANGES b/CHANGES
index a2482ec1b7cc564c387e2c32f74bbba3078587a4..c2f272e93cade4d3eef1f9691cd0a7c496eb8e38 100644 (file)
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,6 @@
+3998.  [bug]           isc_radix_search was returning matches that were
+                       to precise. [RT #37680]
+
 3997.  [protocol]      Add OPENGPGKEY record. [RT# 37671]
 
 3996.  [bug]           Address use after free on out of memory error in

diff --git a/lib/isc/radix.c b/lib/isc/radix.c
index df26615fa9bfb0f2e74cdb48a85620775c7cc2b2..1367def320ee8823d081fd01d8d3adab842595d5 100644 (file)
--- a/lib/isc/radix.c
+++ b/lib/isc/radix.c
@@ -279,6 +279,9 @@ isc_radix_search(isc_radix_tree_t *radix, isc_radix_node_t **target,
        while (cnt-- > 0) {
                node = stack[cnt];
 
+               if (prefix->bitlen < node->bit)
+                       continue;
+
                if (_comp_with_mask(isc_prefix_tochar(node->prefix),
                                    isc_prefix_tochar(prefix),
                                    node->prefix->bitlen)) {

diff --git a/lib/isc/tests/Makefile.in b/lib/isc/tests/Makefile.in
index 5fc6180183b33c88e44d99dc6ab2e31dce29fe07..dc946d2671434f14e9a17a68927dc743f28d49e3 100644 (file)
--- a/lib/isc/tests/Makefile.in
+++ b/lib/isc/tests/Makefile.in
@@ -36,14 +36,14 @@ LIBS =              @LIBS@ @ATFLIBS@
 
 OBJS =         isctest.@O@
 SRCS =         isctest.c taskpool_test.c socket_test.c hash_test.c \
-               lex_test.c \
+               lex_test.c radix_test.c \
                sockaddr_test.c symtab_test.c task_test.c queue_test.c \
                parse_test.c pool_test.c print_test.c regex_test.c \
                safe_test.c time_test.c
 
 SUBDIRS =
 TARGETS =      taskpool_test@EXEEXT@ socket_test@EXEEXT@ hash_test@EXEEXT@ \
-               lex_test@EXEEXT@ \
+               lex_test@EXEEXT@ radix_test@EXEEXT@ \
                sockaddr_test@EXEEXT@ symtab_test@EXEEXT@ task_test@EXEEXT@ \
                queue_test@EXEEXT@ parse_test@EXEEXT@ pool_test@EXEEXT@ \
                print_test@EXEEXT@ regex_test@EXEEXT@ socket_test@EXEEXT@ \
@@ -75,6 +75,10 @@ queue_test@EXEEXT@: queue_test.@O@ isctest.@O@ ${ISCDEPLIBS}
        ${LIBTOOL_MODE_LINK} ${PURIFY} ${CC} ${CFLAGS} ${LDFLAGS} -o $@ \
                        queue_test.@O@ isctest.@O@ ${ISCLIBS} ${LIBS}
 
+radix_test@EXEEXT@: radix_test.@O@ isctest.@O@ ${ISCDEPLIBS}
+       ${LIBTOOL_MODE_LINK} ${PURIFY} ${CC} ${CFLAGS} ${LDFLAGS} -o $@ \
+                       radix_test.@O@ isctest.@O@ ${ISCLIBS} ${LIBS}
+
 symtab_test@EXEEXT@: symtab_test.@O@ isctest.@O@ ${ISCDEPLIBS}
        ${LIBTOOL_MODE_LINK} ${PURIFY} ${CC} ${CFLAGS} ${LDFLAGS} -o $@ \
                        symtab_test.@O@ isctest.@O@ ${ISCLIBS} ${LIBS}

diff --git a/lib/isc/tests/radix_test.c b/lib/isc/tests/radix_test.c
new file mode 100644 (file)
index 0000000..c0fc703
--- /dev/null
+++ b/lib/isc/tests/radix_test.c
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2014  Internet Systems Consortium, Inc. ("ISC")
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <isc/mem.h>
+#include <isc/netaddr.h>
+#include <isc/radix.h>
+#include <isc/result.h>
+#include <isc/util.h>
+
+#include <atf-c.h>
+
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "isctest.h"
+
+ATF_TC(isc_radix_search);
+ATF_TC_HEAD(isc_radix_search, tc) {
+       atf_tc_set_md_var(tc, "descr", "test radix seaching");
+}
+ATF_TC_BODY(isc_radix_search, tc) {
+       isc_radix_tree_t *radix = NULL;
+       isc_radix_node_t *node;
+       isc_prefix_t prefix;
+       isc_result_t result;
+       struct in_addr in_addr;
+       isc_netaddr_t netaddr;
+
+       UNUSED(tc);
+
+       result = isc_test_begin(NULL, ISC_TRUE);
+       ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
+
+       result = isc_radix_create(mctx, &radix, 32);
+       ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
+
+       in_addr.s_addr = inet_addr("3.3.3.0");
+       isc_netaddr_fromin(&netaddr, &in_addr);
+       NETADDR_TO_PREFIX_T(&netaddr, prefix, 24);
+
+       node = NULL;
+       result = isc_radix_insert(radix, &node, NULL, &prefix);
+       ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
+       node->data[0] = (void *)1;
+       isc_refcount_destroy(&prefix.refcount);
+
+       in_addr.s_addr = inet_addr("3.3.0.0");
+       isc_netaddr_fromin(&netaddr, &in_addr);
+       NETADDR_TO_PREFIX_T(&netaddr, prefix, 16);
+
+       node = NULL;
+       result = isc_radix_insert(radix, &node, NULL, &prefix);
+       ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
+       node->data[0] = (void *)2;
+       isc_refcount_destroy(&prefix.refcount);
+
+       in_addr.s_addr = inet_addr("3.3.3.3");
+       isc_netaddr_fromin(&netaddr, &in_addr);
+       NETADDR_TO_PREFIX_T(&netaddr, prefix, 22);
+
+       node = NULL;
+       result = isc_radix_search(radix, &node, &prefix);
+       ATF_REQUIRE_EQ(result, ISC_R_SUCCESS);
+       ATF_REQUIRE_EQ(node->data[0], (void *)2);
+
+       isc_refcount_destroy(&prefix.refcount);
+
+       isc_radix_destroy(radix, NULL);
+
+       isc_test_end();
+}
+
+/*
+ * Main
+ */
+ATF_TP_ADD_TCS(tp) {
+       ATF_TP_ADD_TC(tp, isc_radix_search);
+
+       return (atf_no_error());
+}